United States Maryland Upper Marlboro
Maryland · Upper Marlboro · 2026
Top real estate brokerages in Upper Marlboro, MD
Count taken September 5, 2026Page built September 5, 2026
485 real estate agents in Upper Marlboro, Maryland had a published brokerage profile on September 5, 2026. Keller Williams is the largest real estate brokerage in Upper Marlboro with 381 agents, 78.6% of the 485 whose profile names a brokerage; the three largest together hold 96%.
Real estate brokerages in Upper Marlboro, ranked by agents
Every brokerage with 3 or more agents in Upper Marlboro. A company that publishes no office names appears as one row covering all its offices in the city.
| Brokerage | Agents | Share of attributed agents | Brand | |
|---|---|---|---|---|
| 1 | Keller Williams | 381 | 78.6% | |
| 2 | RE/MAX | 51 | 10.5% | |
| 3 | HomeSmart | 32 | 6.6% | |
| 4 | Real Broker | 20 | 4.1% | Real Brokerage |
Plus 1 more brokerage with one agent each.
How Upper Marlboro compares with Maryland
Upper Marlboro holds 6.8% of the agents counted in Maryland and ranks 3rd of the 214 Maryland cities with at least one agent. The largest brokerage's share is 78.6% here against 22.7% for Keller Williams across Maryland as a whole, so the Upper Marlboro market is more concentrated than the state. 2.3% of the 485 checked agents in Upper Marlboro have a website of their own, against 5.6% statewide. 92.2% publish a direct phone number (statewide 92.1%).
How many real estate agents are in Maryland?
Other Maryland cities
- Baltimore 630
- Annapolis 601
- Ellicott City 353
- Millersville 314
- Chevy Chase 272
- Bethesda 260
- Columbia 257
- Frederick 226
- Bowie 203
- Ocean City 196
- White Plains 196
- Potomac 185
- Rockville 185
- Bel Air 171
- Lutherville 168
Where the data comes from
Counted from the public agent directories of 5 brokerage brands with agents in Upper Marlboro. Independent brokerages outside those networks are not counted, so this is a ranking among the networks we can see, not a census of every licensee in the city. Full method on the national page.
The count comes from a per-agent file kept by usrealtorlist.com (the Maryland realtor email list); an agent is included only with a published, current email, which is what keeps the figure to working agents.
Questions this page answers
- What is the largest real estate brokerage in Upper Marlboro, MD?
- Keller Williams with 381 agents, 78.6% of Upper Marlboro agents whose profile names a brokerage, ahead of RE/MAX (51).
- How many real estate agents are in Upper Marlboro, MD?
- 485 as of September 5, 2026, counting agents with a published brokerage profile. That is 6.8% of the 7,111 counted in Maryland.
Cite this page
Realty Census (2026). Top real estate brokerages in Upper Marlboro, MD: 485 agents. Count dated 2026-09-05. https://realtycensus.com/maryland/upper-marlboro/